Chair frame



FIG. 1 is a front elevational view of a chair frame showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a front elevational view of the chair frame shown in FIG. 1 incorporated into a chair;

FIG. 8 is a left side elevational view thereof;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is a right side elevational view thereof;

FIG. 11 is a top plan view thereof; and,

FIG. 12 is a perspective view thereof.

The broken line showing of components is for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a chair frame, as shown and described. 